Photovoltaic device



FIG. 1 is a bottom plan view of a photovoltaic device showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 front elevational view thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a right side elevational view thereof.

The broken lines in the figures represent portions of photovoltaic device which form no part of the claimed design. 

CLAIM The ornamental design for a photovoltaic device, as shown and described. 